改为被动语态：They use this room for playing table tennis.

改为被动语态：They use this room for playing table tennis. We don't use this knife often.(改为被动语态) 改为被动语态 what do they use to reach the student?where do you exhibit this photos? they took DAN from this plant.（改为被动语态） do you use this machine for cutting wood?（改被动语态）how long did they spend in builing the bridge （改为同义句） They cieaned the floor.改为被动语态 They smashed the window.改为被动语态 LuXun wrote this book 改为被动语态 改为被动语态：Everyone likes this song. The students may use this computer.(改为被动语态）This computer may ___ ___ ____by the students. they invite you to see a film this evening 改为被动语态 改为被动语态 that factory makes this kind of tractor they lauughed at him 1.They do not make this kind of watches in Beijing.改为被动语态 people also use french is english改为被动语态 Many people use computers widely.改为被动语态 改为被动语态：Do Chinese people use bikes widely? Do people use knives to cut things?改为被动语态 paper use wood for making paper.改为被动语态